Pomza agregalı hafif beton blokların mekanik özelliklerinin ve yangın etkisi altındaki davranışının incelenmesi
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Niğde Ömer Halisdemir Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Günümüz beton teknolojisinde hafif doğal agregaların hafif beton üretiminde kullanımı giderek artmaktadır. Bu çalışmada hafif agrega olarak Kayseri – Talas yöresine ait pomza kullanılmış olup, normal agregalı beton blok ile değişik oranlarda pomza içeren beton bloklar, karşılaştırmalı olarak incelenmiştir. Toplamda 6 seri beton blok üretimi yapılmış olup, normal beton blok dışında beş seride belirli oranlarda kum ile pomza yer değiştirilerek hafif beton blok üretimi yapılmıştır. Hafif beton ve normal beton blokların yangın direncini karşılaştırmak amacıyla 1 m3 hacime sahip kapalı alan oluşturulmuş ve yangın başlatılmıştır. Beton blok tuğlalarda yüzey sıcaklığı değerleri ölçülmüş olup hafif beton blok tuğlalarda ulaşılan maksimum yüzey sıcaklığı %50 oranında daha düşük çıkmıştır. Yangın etkisine maruz kalmış normal beton ve hafif beton bloklar basınç etkisi altında kırılmış olup hafif beton bloklarda % 6 oranında düşüş meydana gelirken normal beton bloklarda basınç dayanım kaybının % 18 oranında meydana geldiği görülmüştür. Sonuç olarak pomza ile üretilmiş hafif beton blokların yangın etkisinde normal blok betonlara göre daha iyi sonuç verdiği görülmüştür.
In today's concrete technology, the use of lightweight aggregates in the production of lightweight concrete is increasing. In this study, pumice belonging to Kayseri - Talas region was used as lightweight aggregate and concrete blocks containing normal aggregated concrete and pumice in different proportions were examined comparatively. Six series of concrete blocks were produced in total, and lightweight concrete blocks were produced by replacing the pumice with sand in specific rates of five series except normal concrete block. In order to compare the fire resistance of light concrete and normal concrete blocks, a closed area with a volume of 1 m3 was formed and fire started. Surface temperature values were measured in concrete block bricks and the maximum surface temperature reached in light concrete block bricks was %50 lower. Normal concrete blocks and lightweight concrete blocks exposed to fire were broken under pressure effect and it was observed that the loss of compressive strength was %18 in normal concrete blocks when the light concrete blocks decreased by %6. As a result, it is seen that lightweight concrete blocks produced by pumice have better effect on fire than normal block concrete.
In today's concrete technology, the use of lightweight aggregates in the production of lightweight concrete is increasing. In this study, pumice belonging to Kayseri - Talas region was used as lightweight aggregate and concrete blocks containing normal aggregated concrete and pumice in different proportions were examined comparatively. Six series of concrete blocks were produced in total, and lightweight concrete blocks were produced by replacing the pumice with sand in specific rates of five series except normal concrete block. In order to compare the fire resistance of light concrete and normal concrete blocks, a closed area with a volume of 1 m3 was formed and fire started. Surface temperature values were measured in concrete block bricks and the maximum surface temperature reached in light concrete block bricks was %50 lower. Normal concrete blocks and lightweight concrete blocks exposed to fire were broken under pressure effect and it was observed that the loss of compressive strength was %18 in normal concrete blocks when the light concrete blocks decreased by %6. As a result, it is seen that lightweight concrete blocks produced by pumice have better effect on fire than normal block concrete.
Açıklama
Anahtar Kelimeler
Pomza, Hafif Agrega, Hafif Beton Blok, Mekanik ve Fiziksel Etkiler, Yangın Etkisi, Pumice, Lightweight Aggregate, Lightweight Concrete Block, Mechanical and Physical Properties, Fire Effect
Kaynak
Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
8
Sayı
1
Künye
Akyüncü, V . (2019). Pomza agregalı hafif beton blokların mekanik özelliklerinin ve yangın etkisi altındaki davranışının incelenmesi. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi , 8 (1) , 147-157 . DOI: 10.28948/ngumuh.516853
